![]() Mds 83 root 25r DIR 1,15 288 2 /Volumes/Elements Mds 83 root 22r DIR 1,15 288 2 /Volumes/Elements Mds 83 root 21r DIR 1,15 288 2 /Volumes/Elements Note! Do not forget to replace “Elements” with the name of your disk before pressing Enter.Įnter your password after prompted and then watch the magic happen… For this we need to enter our password when prompted. We must run the above command with sudo (as an Admin). All the tools are built-in in macOS, so we do not need to download or install anything. To solve this, we will use the Terminal app and few console tools. Now I need to know what app is using my disk so I can properly quit that app and eject my disk. So I need to find the solution myself.Īs far as I’m aware, I’m not using the disk but Finder says I do, so I must be wrong. And if you still can’t eject the disk, it suggest to shut down the computer and then unplug the disk…Īs I’m in the middle of doing multiple tasks, logging out and logging in is not preferred as is the installation of third party software like the What’s Keeping Me? or the Why not unmount?. In short, it says to logout, then login again and try to eject the disk. In some cases, macOS will allow us to “force-eject” the disk, but we may still lose data, so force eject is not reasonable.įirst I found this article on the Apple Support website, but unfortunately it did not help. But I’m sure I have not launched any app neither opened any file from the disk. If this happens, we just need to close the file in question and try again eject the disk. If we have any file stored on the disk open in any app, macOS may prevent us from ejecting the disk so we don’t lose any of our data. It means that we are trying to eject the disk that is currently in use. Volume Elements on disk4s1 failed to unmount: dissented by PID 16314 (/System/Library/Frameworks/amework/Versions/A/Frameworks/amework/Versions/A/XPCServices/QuickLookUIService.xpc/Contents/MacOS/QuickLookUIService) Umount(/Volumes/Diskname): Resource busy - try 'diskutil unmount'Īnd the same with the diskutil unmount command recommended in previous error message: This article is intended for advanced users (when the “QuickLookUI” process is not the cause) and/or for coder’s funĪfter several attempts, I tried to use the umount command in the Terminal app, and get the same error: It describes how to do almost the same thing using the Activity Monitor application, instead of using commands in the Terminal. The disk "Elements" wasn't ejected because one or more programs may be using it.įor regular users, I recommend reading another article about this issue. ![]() The volume can't be ejected because it's currently in use. ![]() But to my surprise when pressing the ‘eject’ button Finder warns me with the following error messages: ![]() You can then restore your backup data using the Migration Assistant.After working with an external hard drive (further simply - disk) I want to cleanly unmount it. If repairs aren't successful: As long as you have a backup of the data stored on the affected drive, reformat the drive and perform a clean installation of your operating system version.However, don't give up try rerunning the repair a few times. If First Aid reports a failure: "The underlying task reported failure" message indicates that it failed at making the needed repair.If you must have the file, then check your backup for a usable copy. If you don't need the file, or you can delete the file and easily recreate it. You can examine the files in the DamagedFiles folder.More than likely, both files have become corrupt, but there's a slight chance you can recover one or both of them. The overlapped error indicates that two (or possibly more) files occupied the same location on the drive receiving repair. If First Aid displays an "overlapped extent allocation" error: Disk Utility will create a DamagedFiles folder at the root level of your startup drive.In some previous versions of First Aid, it was necessary to run the repair process multiple times to ensure the repairs were complete that is no longer required. If First Aid reports no issues: If First Aid indicates that the drive appears to be okay or that repairs are complete, you're done.
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